MSP430F23X0 Datasheet, PDF (39/64 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F23x0
MIXED SIGNAL MICROCONTROLLER
SLAS518A -- AUGUST 2006 -- REVISED MAY 2007
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
USCI (I2C Mode, see Figure 23)
PARAMETER
TEST CONDITIONS
f_USCI
USCI input clock frequency
Internal: SMCLK, ACLK
External: UCLK
Duty Cycle = 50% ± 10%
f_SCL
t_HD,STA
t_SU,STA
t_HD,DAT
t_SU,DAT
t_SU,STO
SCL clock frequency
Hold time (repeated) START
Set--up time for a repeated START
Data hold time
Data setup time
Setup time for STOP
f_SCL ≤ 100kHz
f_SCL > 100kHz
f_SCL ≤ 100kHz
f_SCL > 100kHz
Pulse width of spikes suppressed by
t_SP
input filter
tHD ,STA
t t SU ,STA HD ,STA
VCC
2.2 V/3 V
2.2 V/3 V
2.2 V/3 V
2.2 V/3 V
2.2 V/3 V
2.2 V/3 V
2.2 V/3 V
2.2 V/3 V
2.2 V
3V
MIN TYP MAX UNIT
f_SYSTEM MHz
0
4.0
0.6
4.7
0.6
0
250
4.0
50 150
50 100
tBUF
400 kHz
us
us
us
us
ns
ns
us
600 ns
600 ns
SDA
tLOW
tHIGH
tSP
SCL
tHD ,DAT
tSU ,DAT
tSU ,STO
Figure 23. I2C Mode Timing
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